Silica Sand for Glass Industry Click to Zoom Silica Sand for Glass Industry We provide high purity silica sand for glass industry application with min. 99% SiO2 content and controlled moisture. Our special glass industry grade silica sand have below general specification. However we can make specialized graded silica sand as per our client’s requirement. Parameter Limit SiO2 99% Min Al2O3 ≤ 1.00 % Fe2O3 ≤ 0.15 % CaO + MgO ≤ 0.20 % Loss on Ignition (LOI) ≤ 0.50